Antibody purity is > 90% based on SDS-PAGE Small amounts of intact IgG may be present.Affinity purified using solid phase Mouse IgG .Antibody is supplied in 10 mM Sodium Phosphate, 0.15 M Sodium Chloride, pH 7.2. 0.05% (w/v) Sodium Azide is added as a preservative.Based on IEP, this antibody reacts with: \x{2022} heavy (\x{03b3}) chains on mouse IgG \x{2022} light chains on all mouse immunoglobulins .Based on IEP, no reactivity is observed to: \x{2022} non-immunoglobulin mouse serum proteins \x{2022} bovine, goat, human, rabbit or rat IgG Based on ELISA, this antibody has <1% reactivity to: \x{2022} rat IgG .